This is the platform period. If you don't keep changing your exercise style, your body will start to adapt and adjust for a while. The same thing and intensity will save you energy.

You need to change the way of aerobic exercise. Add a little strength. At the same time, change your diet, and your energy and fat intake is lower than usual. Eat less and eat more to stabilize blood sugar. But don't fall below your basal metabolism.

So after being outside for a while, the weight will continue to drop rapidly.